diff options
Diffstat (limited to 'drivers/gpio/gpio-crystalcove.c')
| -rw-r--r-- | drivers/gpio/gpio-crystalcove.c | 30 |
1 files changed, 10 insertions, 20 deletions
diff --git a/drivers/gpio/gpio-crystalcove.c b/drivers/gpio/gpio-crystalcove.c index 58531d8b8c6e..14d1f4c933b6 100644 --- a/drivers/gpio/gpio-crystalcove.c +++ b/drivers/gpio/gpio-crystalcove.c @@ -1,28 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * gpio-crystalcove.c - Intel Crystal Cove GPIO Driver + * Intel Crystal Cove GPIO Driver * * Copyright (C) 2012, 2014 Intel Corporation. All rights reserved. * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * Author: Yang, Bin <bin.yang@intel.com> */ +#include <linux/bitops.h> +#include <linux/gpio/driver.h> #include <linux/interrupt.h> +#include <linux/mfd/intel_soc_pmic.h> #include <linux/module.h> #include <linux/platform_device.h> -#include <linux/gpio/driver.h> -#include <linux/seq_file.h> -#include <linux/bitops.h> #include <linux/regmap.h> -#include <linux/mfd/intel_soc_pmic.h> +#include <linux/seq_file.h> #define CRYSTALCOVE_GPIO_NUM 16 #define CRYSTALCOVE_VGPIO_NUM 95 @@ -279,8 +271,8 @@ static struct irq_chip crystalcove_irqchip = { static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data) { struct crystalcove_gpio *cg = data; + unsigned long pending; unsigned int p0, p1; - int pending; int gpio; unsigned int virq; @@ -293,11 +285,9 @@ static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data) pending = p0 | p1 << 8; - for (gpio = 0; gpio < CRYSTALCOVE_GPIO_NUM; gpio++) { - if (pending & BIT(gpio)) { - virq = irq_find_mapping(cg->chip.irq.domain, gpio); - handle_nested_irq(virq); - } + for_each_set_bit(gpio, &pending, CRYSTALCOVE_GPIO_NUM) { + virq = irq_find_mapping(cg->chip.irq.domain, gpio); + handle_nested_irq(virq); } return IRQ_HANDLED; |